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Senior Wintel Security Engineer / Infrastructure Security Engineer Location: Malaysia Experience: 8+ Years Job Summary We are seeking an experienced Senior Wintel Security Engineer to strengthen and secure enterprise Windows and network infrastructure. The ideal candidate will have extensive experience in Windows Server Administration, Active Directory, vulnerability remediation, PowerShell automation, and network security. The role involves leading remediation activities, implementing security best practices, and ensuring compliance with enterprise security standards. Key Responsibilities Lead vulnerability assessment and remediation across enterprise infrastructure. Harden Windows Servers using Microsoft security best practices. Configure and manage Group Policies (GPO). Implement Windows Defender and Firewall security configurations. Secure Cisco, Juniper, and Palo Alto network devices. Perform vulnerability remediation using Nessus and Qualys reports. Develop automation scripts using PowerShell. Monitor infrastructure using SIEM tools. Support incident response and security investigations. Perform patch management and system hardening. Ensure compliance with CIS, NIST, DISA STIG, PCI-DSS, and HIPAA standards. Mentor junior engineers and provide technical leadership. Prepare technical documentation and standard operating procedures (SOPs). Mandatory Technical Skills Windows Infrastructure Windows Server 2016/2019/2022 Active Directory Group Policy (GPO) Windows Defender Windows Firewall Security Vulnerability Assessment Vulnerability Remediation Nessus Qualys Security Hardening Networking TCP/IP VLAN VPN Routing Cisco Juniper Palo Alto Automation PowerShell Python (preferred) Monitoring SIEM Incident Response Preferred Skills AWS Azure CrowdStrike McAfee Splunk QRadar SCCM WSUS Hybrid Cloud Secure Architecture Design